citra_qt/dumping: Add options dialog

This is a simple list of name-value pairs of options. Users can double-click on an option to set or modify its value.

src/citra_qt/dumping/options_dialog.h

@@ -0,0 +1,32 @@
+// Copyright 2020 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <memory>
+#include <vector>
+#include <QDialog>
+#include "common/param_package.h"
+#include "core/dumping/ffmpeg_backend.h"
+
+namespace Ui {
+class OptionsDialog;
+}
+
+class OptionsDialog : public QDialog {
+    Q_OBJECT
+
+public:
+    explicit OptionsDialog(QWidget* parent, std::vector<VideoDumper::OptionInfo> options,
+                           const std::string& current_value);
+    ~OptionsDialog() override;
+
+    std::string GetCurrentValue() const;
+
+private:
+    void PopulateOptions(const std::string& current_value);
+    void OnSetOptionValue(int id);
+
+    std::unique_ptr<Ui::OptionsDialog> ui;
+    std::vector<VideoDumper::OptionInfo> options;
+    Common::ParamPackage current_values;
+};